What is CVE-2026-103275?

CVE-2026-103275 is a medium-severity vulnerability in Tryghost Ghost, classified under Observable Discrepancy. CVSS score: 4.3/10. Published 2026-10-01.

How severe is CVE-2026-103275?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Tryghost Ghost

CVE-2026-103275

Ghost 5.42.2 before 6.58.0 contains an information disclosure vulnerability in the Admin API bulk post and page edit and delete endpoints, which accept filters on restricted fields such as authors.password, because of an incomplete fix for CVE-2026-70590. Staff-level attackers can infer other staff users' password hashes from which filters match and perform offline password-guessing attacks against them.

Published 2026-10-01.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Tryghost Ghost

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

github.com/TryGhost/Ghost/security/advisories/GHSA-ghq6-q78f-2cpg (vendor-advisory)
github.com/TryGhost/Ghost/commit/5ef16abe85e9b71ac3f1b1e2cbc462802efe3b5b (patch)
www.vulncheck.com/advisories/ghost-5.42.2-before-6.58.0-password-hash-disclosure (third-party-advisory)

Frequently asked questions

What is CVE-2026-103275?: CVE-2026-103275 is a medium-severity vulnerability in Tryghost Ghost, classified under Observable Discrepancy. CVSS score: 4.3/10. Published 2026-10-01.
How severe is CVE-2026-103275?: Medium severity. CVSS v3 base score is 4.3 out of 10.